Compilare: user.cpp: In function ‘void compute_dp()’: user.cpp:30:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘int main()’: user.cpp:71:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] go_l[i][ s[i] ] = i; ^ user.cpp:77:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] go_r[i][ s[i] ] = i; ^ user.cpp:60:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("elimin2.in", "r", stdin); ^ user.cpp:61:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("elimin2.out", "w", stdout); ^ user.cpp:63:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s + 1); ^